Adhesive-applying mechanism



Aug. 15, 1933. 1 5. BODKlN 1,922,523

ADHESIVE APPLYING MECHANISM Filed June 19, 1931 23 INVENTOR 1 fiw'n a Baa Am ATTORNEY Patented Aug. 15, 1933 TE S PATENT OFFICE AD HE SIVE -APPLYING MECHANISM Irving S. Bodkin, New

Gillette Safety Mass, a Corporation Razor Company,

York, N. Y., assignor to Boston, of Delaware Application June 19, 1931. Serial No. 545,443

8 Claims.

My invention relates to improvements in means for applying adhesive material to paper, or other siutable material, in a desired position thereon, such as the application to such paper or the like of adhesive at one or more points.

One of the objects of my invention is to provide means to retain an adhesive material, such as glue, in a fluid condition and excluded from the influence of the atmosphere, or external air, and to permit the deposit of regulated quantities of the adhesive on the paper, or the like, in a successive manner, whereby a charge of the adhesive may be maintained in a fluid state while such charge is being used.

In carrying out my invention 1 provide a rotative normally closed receptacle or container for a fluid-like adhesive, the receptacle having an outlet for the adhesive, and a valve normally closing the outlet and adapted to be operated by engagement with the article to be supplied with the adhesive to open the outlet sufficiently for the exit therefrom of a desired quantity of the adhesive, which may occur ateach rotation of the receptacle, the said article being moved with respect to the receptacle to receive a charge of adhesive in a desired position thereon.

My invention also comprises novel details of improvement that will be more fully hereinafter set forth and then pointed out in the claims.

Reference is to be had to the accompanying drawing wherein:

Fig. 1 is a plan view of a portion of a machine embodying my improvement;

, Fig. 2 is a sectional View on line 2, 2 in Fig. 1, the cover of the receptacle being omitted;

Fig. 3 is a section on line 3, 3 in Fig. 2;

Fig. 4 is a section on line 4, 4 in Fig. 1;

Figs. 5 and 5a are sections substantially on line 5, 5 in Fig. 1, showing parts in different positions; 1

Fig. '6 is a detail section, enlarged, on line 6, 6 in Fig. 3, showing the parts in position for the opening of the valve;

Fig. 6a is a View simiiar to Fig; 6 illustrating the parts in a different position;

' Fig. 7 is a section on line 7, 7 in Fig. 1, and

Fig. 8 is a plan view of an article to which adhesive has been applied in different positions.

Similar numerals indicate corresponding parts in the several views.

At 1 is a receptacle or container having a chamber 2 to contain an adhesive of a fluidvided at one side of the chamber with a cover 3 which may be detachably secured to the receptacle by means of screws 4. In the periphery of the receptacle or container is an outlet opening 5 for the passage of the adhesive A, which outlet opening is normally closed by means of a valve. I have shown the outer wall of the receptacle provided with an inner recess at 6 that communicates with the outlet opening 5, whereby adhesive may accumulate in said recess for exit through the outlet. I have illustrated a valve, shown, in the form of a roller 7, that is adapted to partially protrude from the outlet opening 5 to close the latter, which valve may be pushed inwardly with respect to the outlet 5 to permit the outflow of adhesive from the outlet. I have shown the roller valve 7 as provided with a pivot 8 journaled in a fork 9 at the outer end of a resilient arm 10 located within chamber 2 of the receptacle; The, arm 10 may be in the form of a piece of spring metal secured to a centrally disposed hub 11 within the receptacle, the spring arm 10 having a normal outward spring tendency serving to normally maintain the valve 7 in position to close the outlet opening 5, as by bearing against the edges 5a of said opening that are curved to correspond to the curvature of the periphery of the roller valve 7, (Fig. 6). A detachable plug 12 in the wall of the receptacle permits charging the same with adhesive.

I have illustrated the receptacle or container 1 as rotatively supported in such a way that the valve 7 may engage an article B to apply adhesive thereto during rotation of the receptacle.

Upon the machine frame 13, which may be of any'suitable construction, isjournaled a shaft 14 mounted in bearings 15 upon the frame. The receptacle 1 is shown provided with a recess 1a extending from the periphery inwardly beyond. a central point, whereby the receptacle may be mounted upon shaft 14. A retainer 16 is adapted to fit within the recess 1a and to bear against the shaft 14 to retain the receptacle securely attached to said shaft and whereby the receptacle may be adjusted with respect to said shaft, as may be desired. The retainer 16 may be detachably secured to the receptacle 1 'by means of screws, at 17. I provide means to feed the articles B forwardly under the receptacle 1, the means I have illustrated comprising opposing rollers 18 and 19. The roller 18 is shown journaled on brackets 20 on the table-like top 1317, of themain frame, and the roller 19 is shown carriedby a shaft 21 journaled in bearings on the main frame, said roller being shown projecting through an opening 131) in the table-top.

The rollers 18 and 19 are suitably spaced to grip the article 13 between them for feeding the latter to the receptacle 1. Suitable gearing, at 22, 23 and 24, connect the shafts 14 and 21 for oper ating the feed rollers 18 and 19in coincidence with the rotation of receptacle 1. The shaft 14 may be driven by a sprocket or gear 25 operated in any desired way. Upon shaft 14 is mounted a feeding roller 26, and opposed to the roller.

26 is a roller 27 operative in an opening 28 in the table-top, whereby the article B may be gripped between said rollers for feeding the same beneath the receptacle as adhesive is applied to the article. The roller 27 is shown mounted upon a shaft 29 that is journaled on the main frame and may be driven by means of gearing, at

30. The receptacle 1 is shown of less. diameter than the feed roller 26 so that the receptacle will not engage the article B fed beneath the receptacle, but the valve '7 extends sufficiently far beyond the periphery of the receptacle to lightly engage the articles B, at each rotation of the receptacle, to apply a dab or relatively small quantity of adhesive to the article in a desired position At 31 is an abutment shown supported upon the table-top on a bracket or the like 32, said abutment having an end positioned to engage the protruding valve or roller 7 during rotation of receptacle 1 to push the valve momentarily inwardly and permit a small quantity of the adhesive to pass through the outlet 5 and in contact with the valve, in the position shown in Figs. 5 and 6. When the valve 7 passes from the abutment 31 the valve-will close the outlet 5 and'will carry a. small quantity of the adhesive to dab it on the article 13 in the position shown in Figs.' 5a and 6a. The abutment 31 is providedwith aniinclined end, at 31c, and serves as a scraper for excess adhesive. at'the outlet 5.

When the receptacle 1 is charged with a fluidlike adhesive, such as glue, air will be excluded from the receptacle so that said adhesive will remain in a fluid-like condition until substantially all of the adhesive has been consumed, since when the valve 7 is not in contact with the abutment 31, said valve will close the outlet 5. With the parts in the position shown in Fig. 6, the fluid at the bottom of the receptacle will resist the entrance of air into the receptacle, and when the receptacle is in other positions the valve 7 will prevent the entrance of air into the receptacle. When the machine is in operation the article B, such as an envelope, will be fed by the rollers 18. and 19 to a position between the receptacle 1 and the table-top in such a way that when the valve '7, carrying a small quantity of adhesive on its surface, lightlyengages said article, as in Fig. 5a,,such adhesive will be applied to the article, as at a in Fig. 8, so that the rotation of receptacle 1 and the feed of successive articles Bare in such relationthat each time that an article is fed beneath'the receptacle the article will receive a dab of adhesive.

In the event that it is desired to apply more than one dab or spot of adhesive upon the same article B, or dabs in spaces thereon, a suitable number of the receptacles 1 may be applied upon the shaft 14. I have illustrated shaft 14 as provided with two receptacles 1, in spaced relation; one of the receptacles is shown provided with a single valve 7 and the other receptacle is shown provided with two valves 7, having corresponding outlets, at 5, in spaced relation,

whereby two spaced dabs b of adhesive may be placed upon the article B in a position different from the dab of adhesive at a.

My invention is of advantage in that the adhesive within the receptacle may be retained in fluid-like condition because of the exclusion of air from chamber 2 until substantially all of the charge of adhesive is used. The arrangement is such that successive articles B may be fed and each may receive one or more dabs of adhesive while being fed, or relatively long strips of paper or'the like may be fed past the receptacle or receptacles 1 to receive dabs of adhesive in spaced relation.

My invention is not limited to the details of construction set forth, as the same may be varied within the scope of the appended claims without departing from the spirit of my invention.

Having now described my invention, what I claim is 1. An adhesive-applying receptacle provided with a closed chamber having a peripheral outlet, means engaging and rotatably supporting said receptacle, a valve within the chamber and normally protruding through the outlet, and a spring arm secured within the chamber, the valve being carried by said arm, and means in the path of said valve to simultaneously depress and rotate said valve when said receptacle is rotated.

2. An adhesive-applying machine comprising a receptacle mounted for continuous rotation, said receptacle having a wall portion forming a hub defining a recess, a shaft in said recess, a retainer within said recess, means securing said retainer to the receptacle and against the shaft, means rotatively supporting said shaft, said receptacle having a peripheral outlet, a bodily movable valve within the receptacle to normally close said outlet, a spring rotatably and depressibly supporting said valve, said spring being mounted at one end on said hub, said valve normally protruding from the receptacle, means mounted ona stationary support outside of the receptacle to engage and depress the valve during rotation of the receptacle to convey fluid through the outlet,- and means tofeed articles for engagement with the valve to apply dabs of adhesive to the article. 7

3. An adhesive-applying machine comprising a closed receptacle, means rotatively supporting the receptacle, said receptacle being provided with an outlet and a depressible disk-like valve normally closing said outlet and projecting beyond the periphery of said receptacle, means within the receptacle rotatively supporting the valve, means mounted on a stationary support outside ofsaid receptacle in the path of the valve and in advance of the, article contact position to depressand rotate said valve and means for feeding an article to receive a dab of adhesive from the valve.

4(An adhesive-applying. machine comprising a receptacle having a closed chamber for adhesive and provided with an outlet in its outer wall, a valve depressibly and rotatably supported within the receptacle to normally. close the outlet and having a portion protruding from the receptacle to engage an article to apply adhesive thereto, means rotatively supporting the receptacle, means to feed an article in position to engage thevalve for applying adhesive to the article, and means mounted on a stationary support outside of the receptacle in the path of the valve and in advance of the article contacting position to depress and rotate the valve to convey adhesive fluid through the outlet.

5. An adhesive-applying machine comprising a closed receptacle having an outlet, a valve normally closing the outlet and protruding from the receptacle, means depressibly and rotatively supporting the valve, a shaft carrying the receptacle, a feeding roller connected with the shaft, a roller opposed to the feeding roller to feed articles between said rollers in relation to the valve of the receptacle, means mounted on a stationary support outside of the receptacle in advance of the article contacting position and in the path of the valve to depress and rotate the valve and thereby convey fluid adhesive material through the outlet, and means to feed articles to the first named rollers.

6. An adhesive-applying machine comprising a receptacle having a chamber, said receptacle having a hub provided with a recess, a shaft in said recess, a retainer within said recess, means securing said retainer to the receptacle and against the shaft, means rotatively supporting said shaft, said receptacle having a peripheral bulge defining an internal recess having an outlet, a valve depressibly and rotatably supported within the receptacle and seated against said outlet, said valve normally protruding from the receptacle, means to depress and rotate the valve and means to feed articles for engagement with the valve to apply dabs of adhesive to the article.

7. An adhesive-applying receptacle provided with a closed chamber having a peripheral outlet, a rotary valve within the chamber and normally protruding through the outlet, said valve being supported in spaced relation to the ends of the receptacle, said receptacle being mounted to revolve on an axis extending through the receptacle, means secured directly to the receptacle to propel the receptacle about said axis and means mounted on a stationary support outside of the receptacle in the path of the valve for depressing and rotating the valve and thereby convey adhesive material to a position to be applied.

8. An adhesive-applying receptacle mounted for continuous rotation and provided with a closed chamber having a bulged portion forming a recess within the receptacle, a peripheral outlet located in said recess, a wall portion within said receptacle forming a hub therefor, a valve within the chamber and normally protruding through the outlet, a spring arm secured within the chamber on the hub aforesaid, the valve being pivotally supported by said spring arm, and means in the path of the protruding portion of said valve for depressing and rotating the valve during the rotation of the receptacle.

IRVING S. BODKIN. 

